Float-valve.



F. A. MATHYS.

ELQALYALLE Y APFLICATION FILED AUG.24, 1914 Patented NW1?, 19144 UNITED STATES PATENT oEErcE.

FREDERICK A. MATHYS. 0F SCHENECTADY, NEW YORK.

FLOAT-VALVE.

August 24. 1914.

Tn all 'who-m it may concern.'

Be it known that I, FREDERiC-K A. MAHYS, a citizen of the United States, residing at Schenectady, county of Schenectady, State of New York; have invented certain new and useful Improvements in Float-Valves, of which the following is a specification.

This application is a continuation in part of nl v application Serial No. 787,055, tiled August 28,1913.

.The present invention comprises an improvement in valves which when unseated are. maintained unseat-ed by the buoyancyy of a liquid Vin which they float until the liquid has been discharged.

A oat valve as distinguished from other Atypes of valves, is not accurately and positively seated but is dropped in place by the falling liquid at v'uying angles, and when seated the pressure initially holding it in place is slight, being only subsequently increased by accumulation of liquid above the valve. Therefore, it is important that a. float valve should easily adapt itself to the valve seat and. iit snugly even when little or -no pressure is a plied to it.

It is the object ofpmy invention to provide a form of float valve not subject to deformation, the wearing part of which can be readily renewed and which will adapt itself to varying sizes and shapes of valve seats, and when seated by light pressure will not permit leakage to take place. With this object in view my valve comprises a buoyant body of novel construction having a yielding concavoconvex seating surface constituted by a remnvable band of rubber or like resilient material set on said body over a ,free space in a manner hereinafter described.

The .single figure of the drawing is a view in side elevation. partly in vertical section, of my improved float valve shown closing the outlet from a iiushing tank.

By reference to the drawing it will be seen that the tioat. valve comprises in part a spheroidal body l having an annular peripheral groove 2 located somewhat below a plane passing through the center., The valve ordinarily consists of wood. hollow met-al or of any material being buoyant in water so as to cause the valve to float. Urdinarily l prefer wood which may b e impregnated with water-proof material and varnished. The upper edge of the periph- Specication of Letters Patent.

This @privation med eral groove is provided with a shoulder:1

as shown at 3, b v reducing the diameter of a narrow band of the. valve body. and at the lower edge of the peripheral groeve there is sunk a recess -t inthe material of the valve. ling 5 of resilient-material, such asA rubber. being substantially octavo-convex in cross sec-tion, is seated against the shoulder S i space hetueen substantially the entire seating portion. of the ring and the inner wall of the groove whereby the seating ring 5 is rendered highly-yielding at its point o1 engagement. with the valve 6 .formed by the upper flared edge of an outlet pipe 7. The seating edge of the rubber seating band in the recess prevents its displacement when in the recess 4, leaving a free Patented'Nov. 17,'914

Continuation' in part of application Serial NoA 787.055, tiled VAugust 28, 1913.

serial No1 858 417.

the valve is seated. The part 8 of the valve Y valve seat b v the recession of the water below the level of the upper edge of the out- `let pipe .fits snugly against the Valve seat even `when slightly tilted. The convex outer surface of the seating ring and its highlyY yielding character produced by the free space enables a water tight fit to be obtained even with valve seats of slightly varying diameter and surface which departs from that of the seating ring.

Although l have described. a preferred forni of valve made in accordance with my invention, l wish it to be understood that the invention is not limited to this specific forni but the ialve may have anyY shape providing a. seating ring is provided having a conev seatingsurliare. with a free space between the seating portion of the ring and the body ot' the \alve.

What I claim as new and desire to secure by Letters lalent of the United States, 1s:-

l, A float valve conu'irising a ball lighter than an equal volumev of water and having an annular peripheral groove., and an annular rom-avo-convex rubber band the edges of which are seated at opposite. sides of Said groove to present an outer convex surface and leaving a space between the surface of said ball and said band.

A float faire comprising a wooden ball provided with an annular peripheral groove, and a flexible concave-convex seating ring located in said groove with a free space between Substantially theentlre seating por tion of the ring and the inner wall of the groove.

3. A valve comprising a lotat-ive spheroidal body having an annular peripheral groove,and a recess at one edge of said groove, and anlannular concavo-eonvex rubber band inclosing said' groove and having one edge seated in saidrecess.

4. A float valve comprising a otative bri-ll pi'o\idd\vith an annular peripherial groove, a shoulder on one side of said groove, and a recess on the other side of said groove and a flexible concavo-oonvex ring having one edge seated against said shoulder and the other edge seated in said recess, leaving a free space between the FREDERICK A. MATHYS.

Witnesses:

BENJAMIN B. HULL, W.. G- GARTNER. 

